nusb

A new pure-Rust library for cross-platform low-level access to USB devices.

Compared to rusb and libusb

• Pure Rust, no dependency on libusb or any other C library.
• Async-first, while not requiring an async runtime like tokio or async-std. Still easily supports blocking with futures_lite::block_on.
• No context object. You just open a device. There is a global event loop thread that is started when opening the first device.
• Doesn't try to paper over OS differences. For example, on Windows, you must open a specific interface, not a device as a whole. nusb's API makes working with interfaces a required step so that it can map directly to Windows APIs.

Current status

🚧 Control, bulk and interrupt transfers work on Linux, minimally tested

License

MIT or Apache 2.0, at your option